Author: GREAT BRITAIN. PATENT OFFICE
Title: Patents for inventions : abridgments of specifications. Class 35 Dynamo-Electric generators and motors [including Frictional and Influence machines, Magnets, and the like] : period - A.D. 1916-20 [100,001-155,800], period - A.D. 1921-25 [155,801-244,800], period - A.D. 1926-30 [244,801-340,200]. Complete in three volumes
Description: London : H.M.S.O. 1923. First Edition. Fine copy in the original stiff-card wrappers. Particularly and surprisingly well-preserved; tight. bright. clean and especially sharp-cornered.Physical description; 3 v. : 1 vol. 386 p. 2 vol. 498. 3 vol. 493 p. ill ; 27 cm. Subjects; Dynamo-Electric Generators. Motors. Weight in Kg appr.:

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